How Helmet Size Is Measured

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The helmet is a protective device that covers the head. It protects from injuries, impact, dangerous objects, weather, and ultraviolet radiation. It also functions to prevent injury to the head, bones, and brain. The helmet also protects against the impact and pressure that the sports can cause.

The helmet is designed to not only keep the wearer safe, but it should be fashionable, as well. The motorcycle helmet should fit close but should not crush the head. The helmet should be as light as possible while still providing adequate protection.

Sizes Of a Helmet

helmet size chart sample
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Motorcycle helmet sizing is based on standard American sizing, with L(Large), XL(Extra Large), 2XL(Large), 3XL(Extra Large), 4XL(Large), 5XL(Extra Large), 6XL(Extra Large to Extra Large), 7XL(Extra Large to Extra Large), 8XL(Extra Large to Extra Large), 9XL(Extra Large to Extra Large), 10XL(Extra Large to Extra Large), 11XL(Extra Large to Extra Large), 12XL(Extra Large to Extra Large), 13XL(Extra Large to Extra Large), 14XL(Extra Large to Extra Large)

Small Helmet

Bell Pit Boss Helmet Image
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The small helmet is for beginners and is designed to protect your head from falling objects, e.g., trees. The small helmet covers the top of the head and ears. It has a small visor to protect your eyes.

Medium Helmet 

GT-Air white
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The medium helmet covers most of the head, ears, and neck. It has a small visor to protect your eyes.

Large Helmet

KYT NZ-RACE helmet image
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The large helmet is for experienced riders and is designed to protect your head from falling objects, e.g., trees. It has a giant visor to protect your eyes.

Extra Large Helmet

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The extra-large helmet is for experienced riders and is designed to protect your head from falling objects, e.g., trees. It has a large visor to protect your eyes.

XXLarge Helmet

MT Targo helmet Image
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The XXLarge helmet is for experienced riders and is designed to protect your head from falling objects, e.g., trees. It has a large visor to protect your eyes.

Motorcycle helmet size is measured using three methods (traditionally, digitally, and with an in-built helmet camera). All three methods have their pros and cons, but the most widely accepted method — and the one that most riders use — is the traditional method. To see what size helmet you need, you need to measure your head with a tape measure.

Here’s How Helmet Size Is Measured

Measure Horizontally Around Your Forehead

To determine the proper size, wrap the tape measure horizontally around your forehead, then wrap it horizontally around your head. Do not pull the measuring tape tight. A helmet that fits snuggly is the right size. The general rule of thumb is that the larger the circumference of your dome, the tighter the fit you’ll need. For smaller heads, you’ll want to go with a 21-inch circumference. For larger heads, you should go with a 23-inch circumference. If you’re using a helmet for surfing, skiing, or cycling, you’ll probably want a 25-inch circumference. It’s important to measure your head size with a consistent method. Make sure it’s the same one each time. Also, you can measure your head size in inches or centimeters. Wearing a helmet every day will help improve your safety on the road.

Using Straight Edge To Draw A Circle Around Your Head.

In conclusion, the best way to measure a helmet against your head size is by drawing a full circle around your head. Next, find a piece of paper with a diameter equal to the distance from your left ear to your right ear. Hold the paper against your head, place the paper on the circle, and mark where the paper is where the paper touches your head (or measure your head circumference). Finally, measure the same diameter on the helmet. Again, make sure the helmet rests on your head, not on the paper.

The Measured Diameter Should Be Around 2” Of Your Head.

If you wear a helmet between 2 inches and 2 1⁄2 inches, you are too small and would best fit a 3 and 1⁄2 inches. It is important to choose the right size. Motorcycle helmets are an important part of any motorcycle-riding safety kit. The measured diameter should be around 2” of your head. Motorcycle helmets protect your brain and the skull and can reduce the chance of serious head injury.

If You Are Between Sizes, Select The Larger One.

In summary, if your head is between sizes, choose the larger size, as sizing will vary by brand. Also, keep in mind that your helmet should fit as snug as possible without causing discomfort or pain. Finally, check the ECE 22.05 certification process to verify the helmet’s safety certification.

Don’t Choose the Helmet Size Just Based On The Head Circumference Or The Size Chart.

Helmet sizes are based on a circumference measurement around the head. The circumference measurement is taken around the largest part of the head, which is typically above the ears. The motorcycle helmet size chart is distributed by manufacturers, not customers. And manufacturers don’t tell you the exact measurement you need to take. But, there is some information about the helmet sizing requirements for your country. So, do your research and find the right measurement for your specific country. And buy a helmet that fits you perfectly.

Wear It

It’s important to wear a helmet that fits. Regular helmet sizes are too big for most women, but 53 percent of women wear the wrong size. Women with long hair usually wear the largest helmet size available, while women with short hair wear the smallest size available. If your helmet fits, it will protect your head in an accident. If it doesn’t, it could injure or kill you.

Check If It Fits Properly

Measure the circumference of your head across the widest part, then check the chart to see if your helmet will fit. Keep in mind that small-to-moderately sized helmets are suitable for most adults. Larger helmets are geared more toward expert riders, but can be used by people who wear glasses or have trouble seeing.

When measuring helmet size, it’s important to gauge the size of the helmet, not the size of the head. The helmet must be big enough for the chin strap, and comfortably tight around your head. The chin strap should fit securely. Make sure that the helmet is comfortable and secure before you ride.